Dumping scow



G. MAROTTE ET AL' DUMPING scow Filed July 1 6. 1925 :s Sheets-sheet 1 f. v I;|; v Fmg'. 'dull V 'ffl/ 2310. yf.- V

@25h Mam jfo/ Inventum By [a Z O f Attorney Nov. 30 1926. v 1,609,179

^ G. MAROTTE ET AL DUMPING scow Filed July 16, 1925 if Sheets-Sheet 2 Inventors` l j I [l azz alfalfa By n n Attoxfney Nav. 3o, 1926.

@W M 5 e 1 f m f /1V\M\\\ ,A/\WV\\\\\\\\ W0 mm 5 4 Mn.. /lllmla l f as 5f, e ik u v l M www. k @n j@ j ,55%. HV .w M .uw 5 ,P f. ///V o f W. w: 0 m 9 IM @Y W 1 E 9 r, Mw lul F m Patented Nov. 30, 1926.

STA-TES,

P'TENTUFF';

GDON MARo'r'rn AND HoRAoE DUssAnLnojQunDnC; ouni'anc, CANADA AAs'slcirions NATIONAL DOCK & DREDGING conPoRArrIoN LIMITED, oF QEBEC,

T0` CANADA.

DUMPING lscovv.

Application iled .Truliy16, [Serial No.

n The presentinvention pertains to a noyel dumping scoW ofthe type which discharges through the bottom. The object-of the inventienis `adeviceof this character vhaving hingedbottom sections and a v,control mechanism forthese sections constructed to avoidptozo rapid discharge. In the accomplishment `of this object, `the h'ull of,4 the vesselis divided by partitions into a number of separate bins and ya pair ofV hingedjsectionslvare provided inthe bottom of each binff Adjacent each bin is journaled a; separate,v shaft,l..these shafts are infalinementV vand lindepen'denftly connected to theifrjrespective sections the bins. f A separate lockingmdevice, preferably a pawl` and ratchet,- is.` asso'ci'atedy with each shaft; whereby theseveral bins maybe-1281* mitted to discharge independently p. Clutch 'connections are provided among theA alined shafts, so that when o ne ishafteis reversed, 1vall )shafts Willl belgreversedw*With` it latgthe same instant to close all the binsA together. The invention is fully disclosed in the following' description and in the accompanying.drawings inWhich: I A Y* Figure side elevation of thescovv; `Figure 2 ,is a Vlongitudinal vertical section thereof;

Figure 3 is a plan View; l L 'Figure 4 is a detail 'section of one of the sheaves; i v

Figure', is a fragmentary plan vieW on a larger scale;` e t.

Figure 6 is a side elevation onon'e of the sheaves; Y@ .e Figure 7l is anj'edige vie-Wethereof.; A i FigureS is a detaiiof the pressure cylin if uw Fig. Qjisv a fragmentary transerve vertical section through one of thebins; y ,',Figure 10 isajve'rtical `sec-,fion of the pressure, cylinder and associated parts and Figu'res 11,'.12and 13 Aareldet'ail sections of the clutches in various positionsm Reference to theseviews Will now be mad use of like characters `which are employed Vto designate corresponding parts throughout. f y.

l The scoW comprises a hull 1 over .thetop of Which Vis bui ta deck 2; In the deck is retaineda longitudinal opening 3 at the y 'cylinder'.

edges of yvvhich disposed ivallst and transverse WallsV 5 extending a,pair of `section 8 hingedto the longitudinal Walls i as clearly*v illustrated in Figure-9.

Thesesections constitutethe bottomr of :the

barge andare controlledvin Atheir epening and closing by: the mechanism constituting the subyectmatter of the invention. l.

: Uponthe deck are mounted upright beaij- I ings 9 in which are journalle'd `a series .of alined shafts 10,V 1.0?.and 10P, corresponding to the binsl 7', Fand 7V respectively. l The sheaves on the shaft 10are bot-h indicated by the ,numeralll since they are simultaneous in function. The sheaves at thefenrds Vof the ls'vhaftlOa.are indicatedby the numerals 1 2 12?. yand thesejcarried shaft 10b are deslgnated ,as fl-pand 1.3!- ,Th'e inneufa ofeach sheave is formed-Witha collar-.V14

vis

which serves as afspaicer with respect tjo the adiacnt bearing 9# The Outer ,facesithe sheaves, vwith the yexception o fthe extreme members 18,k are.v formed` with projections "or:` teeth 11a, 12212@8L and 13a, corresponding to the sheaves of the sameuiumerals, "as illustrated in Figure 5.` These memb'ersare 'in the path lof. one another,` and a pair of adjacent members; may thus function asfa clutch.A Itwill 'be seen, particularly from Figurer?, that` the lateralL edges of these teeth are inclined 'as at 15 to provide a secure engagement'. y

The central shaft 10 carries a pinion 16 meshing with a vertical rack 17 which ei;- tfends into the hold 18. vThe hold Ycontains a pressure cylinderu19 which is entered by the lower end 'of therack, the Vlatter being provided with a piston 2O acting in the A` fiuid pressure pipe 21 'extends from a suitable source to the lower end of the4 cylinder, and opposite the entrance of this. pipe is provided a relief 22 of comparatively small diameter .in reference to the inlet pipe. When fiuid is admitted to the cylinder 19, the rack is lifted to actuate the pinion 16. lVhen the supply is cut oif, the iuid within the cylinder escapes through the relief 22.

Each shaft 10, a and 1()b carries a ratchet 23 engageable byV a pawl pivoted to the deck 2.

Each sheave carries a transverse spindle 25 to which is secured the end of a cable 26. The cables secured to the sheaves on given shaft, pass through the adjacent wall l and into the corresponding bin. A longitudinal rod 27 is passed through by the bins and carries guides 28 overrwhich the cables are trained. To the remaining end of each cable 2G is secured a pair of chains 29 attached to the inner edges of the corresponding hinged sections 8.

The operation of the device is as follows: Then the scow is to be emptied, the pawl adjacent the central shaft 1() is released from its ratchet, whereby the sections 8 of the central bin are opened downwardly by the weight of the load. The downward pull on the central cables 26 causes the shaft 10 to turn until the sections 8 have reached their downward limit, at which instant the projections 11a engage the projections 12a. The relation of the teeth 11 and 12, at the beginning and end of the rotation of the shaft 10 is shown in Figures 11 and 12 respectively. When it is desired to empty one or both bins 7a, according to a safe rate of discharge, the corresponding pawl 24 is released for `one or both bins, as the caseV may be. Considering only one of these bins, since the action is the same on either side, the shaft-10a is brought into rotation in the manner already Vdescribed until'the corresponding sections 8 reach their downward limit and the projection 12xl engages the projection 13El as shown in `Figure 13. Finally, at t-he proper time in accordance with a safe rate of discharge, the pawl adjacent the shaft 10b is released. Obviously, this construction may be extended to any desired number of bins. To close the hinged sections after discharge of the bins, the rack 17 is set in operation by admission of pressure fluid into the cylinder 19. The piston and rack are raised, thereby turning the pinion 16 and shaft 10 in the reverse direction of that followed in the opening of thebins. The teeth or projections vof adjacent shafts, having been brought into engagement by turning in the direction for opening the sections 8, will act as positive clutch kconnections among the shafts in the reverse or closing direction. The shafts 10- and 10b will reverse simultaneously with the shaft 10, and all the doors 8 will close together. Obviously the sheaves wind the cables 2G and raise the sections 8 to closed position as illustrated in Figure 9.

lVhile a specific embodiment of the invention has been illustrated and described,l it

Vjournalled is to be understood that various alterations in the details of construction may be made withoutdeparting from the spirit of the invention as indicated by the appended claims.

Having thus fully described the invention, what we claim new and desire to protect by Letters Patent is 1. A dumping scow comprising a hull and a deck, partitions dividing said hull into a plurality of bins, hinged sections in said bins forming the bottoni of the scow, a shaft journalled adjacent each bin and operatively connected to the sections in said bin, separate locking means for each shaft, and clutch connections among all said shafts.

2. A dumping scow comprising a hull and a deck, partitions dividing said hull' into a plurality of bins, hinged sections in said bins forming the bottom of the scow, a shaft journalled adjacent each bin and operatively connected to the sections in said bin, ratchets carried by said shafts, and pawls mounted on said decks and adapted for engagement with said ratchets, and clutch connections among all said shafts.

3. A dumping scow comprising a hull and a deck, partitions dividing said hull into a plurality of bins, hinged sectionsin said bins forming the bottom of the scow, a shaft adjacent each bin, sheaves mounted on said shafts and having flexible connections to the corresponding hinged sections, separate locking devices for said shafts, and clutch connections among all said 1 shafts.

4.-. A dumping scow comprising a hull and a deck, partitions dividing said hull into a plurality of bins, hinged sections in said bins forming the bottom of the scow, a shaft journalled adjacent each bin and operatively connected to the sections in said bin, ratchets carried by said shafts, pawls pivoted to said deck and adapted for engagement with said ratchets, and clutch connections among all said shafts.

5. A dumping scow comprising a hull and a deck, partitions dividing. said hull into a plurality of bins, hinged sections in said bins forming the bottom Vof the scow, a shaft'journalled adjacent each bin, sheaves mounted on said shafts and having flexible connections to the corresponding hinged sections, separate locking devices for said shafts, teeth carried by said sheaves, the teeth of each sheave being adapted to engage the teeth of the sheaves on the adjacent shafts.

6. A dumping scow comprising a hull and a deck, partitions dividing said hull into a plurality of bins, hinged sections in said bins forming the bottom of the scow, a shaft journalled adjacent each bin and operatively connected to the sections in said bin, ratchets carried by, said shafts, pawls pivoted to said deck and adapted for engagement `With said ratchets, teeth carried by said sheaves, the teeth of each sheave being adapted to engage the teeth of the sheaves on the adjacent shafts.

7. A dumping scovv comprising a hull and a deck, partitions dividing said hull into a plurality of bins, hinged sections in said bins 'forming the bottom of the scow, a shaft journalled adjacent `each bin and operatively connected to the sections in said bin, separate locking means 'l-'or each shaft,

clutch connections among all said shafts, a pinion carried by one of said shafts, and a slidable rack meshing With said pinion.

8. A dumping scovv comprising a hull and a deck, partiti-ons dividing said hull into a plurality of bins, hinged sections in said bins forming the bot-tom of the scow, a shaft journalled adjacent each bin and operatively connected to the sections in said bin, ratchets carried by said shafts, paWls pivoted to said deck and adapted Jfor engagement With said ratchets, clutch connections .among allsaid shafts, a pinion carried by one 4of said shafts, and a slidable rack meshing with said pinion.

9. A dumping scoW comprising a hull and a deck, partitions dividing said hull into a plurality yof bins, hinged sections in said bins forming the bottom of the scoW, a shaft journalled adjacent each bin and 0peratively connected to the sections in said bin, ratchets carried by said shafts, pavvls pivoted to said deck and adapted for engagement with said ratchets, teeth carried by said sheaves, the teeth of each sheave being adapted to engage the teeth of the sheaves on the adjacent shafts, a pinion carried by one of said shafts, and a slidable rack meshing With said pini-on.

In Witness whereof We have hereunto set our hands.

GDON MAROTTEQ HORACE DUssAULT. 

